Coding of laser fibers

1. A laser system comprising:

a laser fiber having a connector; and

a laser device having

a laser for supplying laser light,

a coupler for the connector of the laser fiber for coupling laser light in the laser fiber connected to the coupler via its connector, and

a controller for operating the laser depending on an identification code assigned to the laser fiber, wherein the controller compares the identification code assigned to the laser fiber with an identification code assigned to the laser device, wherein the identification code assigned to the laser device is different from identification codes assigned to other laser devices, wherein the identification code assigned to the laser device is permanently programmed into a memory of the laser device, wherein the comparison is made according to a secret algorithm stored in the laser device, and the controller only operates the laser, if the comparison has the outcome that the laser fiber is exclusively intended for the laser device and not any of the other laser devices, wherein the controller stores in the laser device a record of use of each laser fiber used in combination with the laser device under the identification code assigned to the laser fiber.

2. The laser system according to claim 1 , wherein the identification code assigned to the laser device is permanently programmed in the laser device.

3. The laser system according to claim 1 , wherein the controller has an input device for manually inputting the identification code of the laser fiber in the controller.

4. The laser system according to claim 1 , wherein the controller automatically reads the identification code assigned to the laser fiber from a data carrier.

5. The laser system according to claim 4 , wherein the controller automatically reads the identification code assigned to that laser fiber which is presently connected to the coupler for the laser fiber.

6. The laser system of claim 1 , wherein the controller prevents a further use of the laser device in combination with a particular laser fiber, if the record of use indicates that a predetermined maximum use of the particular laser fiber has already been reached.

7. A method of operating a laser device to which an identification code is assigned in combination with a laser fiber depending on an identification code assigned to the laser fiber, wherein the identification code assigned to the laser fiber is generated depending on the identification code assigned to the laser device, wherein the identification code assigned to the laser device is permanently programmed into a memory of the laser device, wherein a controller stores in the laser device a record of use of the laser fiber used in combination with the laser device under the identification code assigned to the laser fiber, and wherein, prior to operating the laser device in combination with the laser fiber, the identification code assigned to the laser fiber is compared to the identification code assigned to the laser device in such a way that the laser fiber may only be used in combination with the laser device to which the identification code is assigned depending on the basis of which the identification code of the laser fiber has been generated, wherein the comparison is made according to a secret algorithm stored in the laser device, and other laser devices are assigned other identification codes that are different from the identification code of the laser device.

8. The method of claim 7 , wherein the identification code assigned to the laser fiber is printed on a label of the laser fiber.

9. The method of claim 7 , wherein the identification code assigned to the laser fiber is written in a read and write data carrier of the laser fiber.

10. The method of claim 9 , wherein the identification code assigned to the laser fiber is automatically read from the read and write data carrier of the laser fiber by the laser device.

11. The method of claim 7 , wherein the identification code assigned to the laser fiber is generated also depending on properties of the laser fiber.

12. The method of claim 7 , wherein a further use of the laser device in combination with a particular laser fiber is prevented, if the record of use indicates that a predetermined maximum use of the particular laser fiber has already been reached.